diff -r dbe8438d5dca -r 9569e9f35374 include/vector.h
--- a/include/vector.h	Tue Apr 22 13:33:12 2008 +0200
+++ b/include/vector.h	Wed Apr 23 10:38:33 2008 +0200
@@ -30,6 +30,8 @@
 #include <math.h>
 #include <iostream>
 
+#include "common.h"
+
 using namespace std;
 
 /**
@@ -166,10 +168,24 @@
 		return Vector3(a.x * b.x, a.y * b.y, a.z * b.z);
 	};
 
-	// print
+	// write
 	friend ostream & operator<<(ostream &st, const Vector3 &v)
 	{
-		return st << "(" << v.x << ", " << v.y  << ", " << v.z << ")";
+		return st << "(" << v.x << "," << v.y  << "," << v.z << ")";
+	};
+
+	// read
+	friend istream & operator>>(istream &st, Vector3 &v)
+	{
+		char s[10];
+		st.getline(s, 10, '(');
+		st >> v.x;
+		st.getline(s, 10, ',');
+		st >> v.y;
+		st.getline(s, 10, ',');
+		st >> v.z;
+		st.getline(s, 10, ')');
+		return st;
 	};
 };